https://gitlab.com/christosangel/c-squares
c-squares written in the C language will render random coloured rectangulars in the terminal, while the font, speed, density, color, ratio and number of the shapes drawn are fully costumizable.
Every time a rectangular is complete, a new one starts to take shape.
Feel free to explore the endless variations.
More like something like eye candy, but it can also work like this.